When a country is x percent richer compared to other years, it actually means the wealthy people have become richer, not the poor masses. In times like these, the wealthy become more wealthy while the poor become poorer. Few get lucky enough to join the league of the wealthy, probably less than 2% of the poor. Big companies striving in agriculture, manufacturing, NGO, and civil servants with successful small businesses are used to measure the GDP. But a major impact from big companies.
Its very realistic and valid point that in rich countries almost all individuals living better life style but its doesn't always same for poor people of that country. In rich countries mostly limited people make multinational companies which improves the stat of these countries but the poor people keep struggling. Growth in imports due to progress of agricultural and industrial sector helps to increase GDP on paper but the opportunities not always equally distributed. Only some individuals who are extra ordinary improves there life style. GDP is not the indicator of any countries success because actuall success and growth meanings that residents of that country have comfortable living expenses, good health care facilities and good job opportunities or mostly poor people satisfied with there living standards.